Home / 841,620.18-1,161,443.25-479,067.36

Finding the Fourth Proportional to 841,620.18, 1,161,443.25 and 479,067.36

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Solution

The fourth proportional to 841,620.18, 1,161,443.25 and 479,067.36 is: 661,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,620.18 : 1,161,443.25 = 479,067.36 : x
  2. Step 2: Convert to fraction form
    841,620.18/1,161,443.25 = 479,067.36/x
  3. Step 3: Cross multiply
    841,620.18x = 1,161,443.25 × 479,067.36
  4. Step 4: Simplify right side
    841,620.18x = 556,409,551,567.32
  5. Step 5: Solve for x
    x = 556,409,551,567.32/841,620.18
  6. Step 6: Final answer
    x = 661,117.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.